04_ PRESTIGE GR & ST300-MG SUPERTWEETER MANUAL
WIRING
The SuperTweeter should be connected across your main speakers, positive (red) to positive and negative
(black) to negative. Ensure your amplifier is switched off, and the volume control turned fully down
before beginning.
Single wired installation: The SuperTweeter is simply connected across your speaker terminals. An optional earth
cable can be taken back to your amplifier chassis or ground. (See Fig 1)
Bi-wiring installation: The SuperTweeter is connected across the HF terminals on your loudspeaker. Again, an earth
cable may be taken back to your amplifier, or to the earth terminal on Tannoy loudspeakers that have this provision.
(Shown in Fig 2)
For optimum performance, the central earth connection on the SuperTweeter should be taken back to the amplifier
chassis or ground point. This screening effect can give an improvement in detail and clarity, depending on the
amplifier used, by reducing radio frequency interference.
It is important to use a high quality cable between the SuperTweeter and the main loudspeakers. A thick and heavy
cable is not needed for good performance due to the small signal currents involved and could pull the SuperTweeter
off your loudspeaker causing damage.
INITIAL POSITIONING
With a Tannoy Dual Concentric loudspeaker system, the low and high frequency radiation is generated on the same
axis. This is done by mounting the high frequency unit behind the low frequency one, and coupling it to the low
frequency radiator via a carefully optimised waveguide through the centre of the drive unit. Low and high frequencies
are thus fully integrated at source, to give the most accurate reproduction. The sound will therefore appear to
emanate from a point source a little behind the front of the speaker cabinet. The SuperTweeter then needs to be
positioned to coincide with this point for best results. For this reason, an alignment gauge, covering our current and
past models is included.
Firstly, with reference to Fig. 3 and Table 1, position the SuperTweeter on the cabinet, then the alignment gauge such
that it is flush with the front of the cabinet. The distance shown is from the front edge of the cabinet, and refers to the
letter coded marking on the alignment gauge. Finally, withdraw the alignment gauge from under the Supertweeter,
ensuring it does not move. Note that due to the large distance involved, the alignment gauge is unsuitable for the
Tannoy Autograph- please use a tape measure in this case.
ADJUSTMENTS
Referring to Table 1 again, select the sensitivity and crossover frequency settings to suit your loudspeakers, and
install the adjustment screws into the correct position on the SuperTweeter adjustment panel.
The vertical angle on the SuperTweeter may be adjusted by slightly rotating the machined tweeter housing about
the friction damped yoke, on which it sits. Optimum performance will be achieved if the SuperTweeter diaphragm is
pointing at ear height when seated.
After double checking the wiring, you are now ready to switch your amplifier on. Select some music you are familiar
with, and gently advance the volume control to normal listening level.
RUNNING IN
Like all loudspeakers, the drive unit in your SuperTweeter requires a while to reach optimum performance, as the
stresses in the materials relax. For this reason, it is beneficial to run the system at fairly high levels at normal room
temperature for approximately 20 hours to reach best results.
